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J.' & MONTGOMERY. Grain Wirin'ower.

Patented Dec. 20. 1853',

N PEIERs, Pmwl'rmn n her, Wishinglon, D. c.

UNITED STATES PATENT orirron. &

JOSEPH MONTGOMERY AND JAS. MONTGOMERY, or LANcAs rE PENNSYLVANIA.

SHOE T0 WINNOWERS.

Specification of Letters Patent No. 10,324, dated December 20,

To all whom it may concern:

Be it known that we, JosErrI MONTGOM- ERY and JAMES MONTGOMERY, of the city of Lancaster and State of Pennsylvania, have invented new and useful Improvements in Winnowing-Machines; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and'to the letters of reference marked thereon, making a part of this specification.

Toenable others skilled in the art to make and use our invention we will proceed to describe its construction and operation, as set forth.

The nature of our invention consists in the combination of an additional removable shoe and a closable door, or aperture, in the apron of a winnowing machine, with an ordinary winnowing machine; arranged and operating substantlally as hereinafter described.

Figure 1 represents in perspective the shoes in combination, and Fig. 2, the improvement or smaller shoe.

A represents the larger shoe as commonly attached to winnowing machines, having grooves in the inner sides, into which the screens, sieves, or sieve boards are slid in and rest; B the curved apron upon which the grain falls after passing through a hopper above; C the door which is made to extend across the curved apron B and opening back on hinges, toward the front end of shoe A, rests fiat upon the front part of the apron B. The grain passes along the curved apron B, and through the aperture of the door C and falls upon the screen Dunderneath. The grain is carried over the screen D on to the board E in front, while the screenings pass through the screen D into the shoe G underneath, and are carried along the bottom of the shoe G to the center, where a spout H receives the screenings and carry them down behind into a boX below the bottom of the shoe A. The grain also continuing to pass over the board E falls upon the screen I underneath, and is carried along back on to the grain board perfectly screened, while that portion of the screenings, which passed over the screen D above, and were carried over the board E on to the screen I pass through the screen I and are carried along the bottom of the larger shoe A where theyv are finally thrown out through a bottom aperture into the same box, where the screenings were deposited by the pipe H. This shoe G is located immedi- 'ately under the door G of the apron B and By removing the screen D at any time, l

and sliding a finer screen over the top of shoe G the machine then screens clover and timothy seed, and the seed being confined in the shoe G is forced to pass through the spout H, and thus a great saving of the seed is insured which otherwise would be blown awayby the fan; and whenever the operator desires to chaff the grain the shoe G is removed, and the ordinary sieves for chaffing are inserted in the grooves of the shoe A.

The advantages of our above described improvement in winnowing machines are, 1st, by closing the door C, and removing the additional removable shoe Gr, grain may be winnowed in the ordinary manner, without causing it to pass over an unnecessary surface, ofscreen, which would retard the operation; 2nd, by inserting said shoe 'G and opening the door C, a considerably larger portionof screen is obtained for preparing grain for seeding, or for other purposes,

when a high degree of purity is desired;

3rd, by employing said shoe G and thus eX- cluding the blast from the grain in the first stage, the smallest and lightest screenlngs, (which may be of some value,) are preserved; and the grain then passing over other screens and before the blast, a superior quality of screenings, or rather a second quality ofgrain, is obtained and properly 2 cleaned by the fan; 4th, by the use of said shoe, clover seed and other very small seeds, which need not the action of the blast, are speedily'screened and entirely caught therein; 5th, by dispensing with the removable screens and covering a considerable portion of the remaining screen D, (by closing the door, or aperture, C,) large kinds of grain, such as beans and maize, Which need little or no screening, may be most expeditiously cleaned by the fan and finally, all these several advantages are claimed to be attained,

in a cheaper and morecompact manner than heretofore, by amploying, the aforesaid device of the additional removable shoe G and Clo-sable door, or aperture, 0, in the apron. 

